Loom.



PATENTED AUG. 20, 1907. 0; w. SGHAUM. LOOM APPLIUAT IOH FILED JAN. 10,1907.

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No. 863,945. PATENTED AUG. 20, 1907.

0. W. SGHAUM.

LOOM.

APPLIGATION FILED JAN. 10, 1907.

2 SHEETS-SHEET 2 JTTOIM/EX 1n: NORRIS PETERS c0.. WASHINGTON. m c.

I OTTO W. SOHAUM, OF PHILADELPHIA, PENNSYLVANIA.

LOOM.

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed January 10,1907. Serial No. 351.660.

To all whom it may concern:

Be it known that I, OTTO W. Sermon, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inLooms, of which the following is a specification.

The invention to be hereinafter described relates to supporting,guiding, and leading off means for the warp threads and resultingfabrics in looms for weaving narrow ware, such as ribbons and the like,and is designed more particularly as an improvement on the constructionset forth in a prior patent granted to me on June 26, 1906, number824,310, to which reference may be had. In the patent referred to, thewarp beams or spools at the rear of the loom were sustained inback-racks, each formed of an upper and lower bracket secured together,so that in adjusting the back-rack sections for different characters orwidths of fabrics to be woven, the upper and lower brackets were movedas a unit or together without changing the overlapping relation of theupper and lower spools or beams. 1n narrow-ware looms, as well known bythose skilled in the art, the width of the fabrics produced is less thanthe width of the warp as it comes from the spools or beams, so thatwhile the construction set forth in said Letters Patent has provenadmirably adapted as an equipment for changing a narrow-ware loom so asto weave several varieties of narrow fabrics, yet the upper and lowerconnected bracket arrangement, as described therein, does not admit ofmuch variation in the relative overlapping condition of the warp beamsor spools, and, consequently, the adaptation of such structure has beenfound to be limited.

With these considerations in view, the object of the present inventionis to provide a construction for the support of the warp spools or beamsat the rear of the loom and their guide or whip rolls, whereby through asimple adjustment of the supporting means for the spools and guides orwhip rolls, the loom may be adapted to weave a wider range of narrowfabrics, the said spools being preferably provided with automatic letoff devices, and economical use can be made of the entire width of theloom frame.

The invention, generally considered. consists of the featureshereinafter specified, and the parts and combinations described anddefinitely set forth in the claims.

In illustration of the present invention, I have selected the embodimentshown by the drawing without, however, attempting to disclose thenumerous changes and variations that may be made within the scope of theinvention, and for clearness I have omitted all parts of the loomstructure not directly associated with or connected to thesubject-matter thereof,

as such parts are well understood by those skilled in the art.

In the drawings: Figure 1 is a vertical longitudinal section of anarrow-ware loom showing a back-rack constructed in accordance with thepresent invention and having provisions for supporting vertical rows offour beams or spools. Fig. 2 is a rear elevation of a portion of theconstruction shown by Fig. 1, with the beams or spools next above thelower ones omitted and their supporting arms broken away or in section,so as to more clearly show the parts beyond. Fig. 3 is a verticalsection on line 3-3, Fig. 1, showing the take-up beams and theirconnections. Fig. 4 is an enlarged detail showing the adjustableconnection between the back-rack sections and the guide or whiprollsupports. Fig. 5 is a detached detail in elevation showing theconnection illustrated in Fig. 4, and Fig. 6 is a detail perspectiveview, parts being broken away, showing the transversely extendingback-rack supports or rods, and the manner for adjustably connecting theadjacent ends of the upper and lower back-rack sections thereto.

In my prior patent, hereinbefore referred to, the back-rack sectionswere formed each of an upper and lower bracket arm secured togetlror, sothat transverse adjustment of the upper and lower portions could be madesimultaneously to accommodate warp-spools of different lengths betweenadjacent sections. In such construction, however, there was nosufficient provision for relative adjustment of the upper and lowerportions of the back-rack sections independently, so that the full widthof the loom could not be economically utilized, and the variety ofwidths of narrow fabrics produced was limited. This will be clear tothose skilled in the art, because the width of the sheets of warp comingfrom the warp-spools is greater than the .width of fabrics produced,and, consequently, such warp-spools, if supported and adjusted tooverlap more or less in proportion to this difference, an economic usecan be made of the full width of the loom and greater variety in narrowfabrics result.

In the present invention, therefore, the upper and lower back-racksections are formed independently of each other and are relativelyadjustable transversely in a manner to adapt the loom to a wider rangeof fabrics, as will be hereinafter pointed out.

The loom frame A may be of any usual or desired construction, andextending transversely thereof are the cross-beams A, A A and A Securedrespectively to the beams A and A at the rear of the loom are the faceplates a and b, and disposed intermediate of the said beams are theintermediate back-rack supports or rods 0, d.

The upper portion of each back-rack section 13 consists of thecomplemental brackets or arms I) b between which, in suitable bearings,the upper warpspools 1) b having usual warp tension or let-off devices[1 are supported.

The upper end I) of each upper back-rack section, is connected at b bysuitable bolts 01' otherwise to a top-bracket O, which in effectconstitutes the upper extremity of each section, and has suitablebearings c c for the guide or whip rolls 0 0. Each of the brackets Cand, consequently, the upper extremities of each backrack section isadjustable transversely of the loom and supported in position on theface-plate by means of the engaging lip c and the screw bolt csubstantially as set forth in my former patent.

The lower portions of brackets or arms b b of each upper back-racksection, are connected together by means of a spacer or tie piece I),preferably joined to the lower ends of the brackets or arms I) b, asbest shown in Fig. 6. The ends of the brackets or arms b b rest upon theintermediate back-rack supports or rods 0, d, and are held thereto bymeans of a plate b engaging the under portion thereof and drawn up by ascrew bolt b Obviously, of course, the details of structure may bevaried and any suitable clamping devices be employed for holding thebrackets or arms I) b adjustably upon the intermediate back-racksupports or rods, the construction being such that the upper back-racksections may be adjusted transversely of the loom independently of thelower back-rack sections, or the brackets or arms I) b may be disposed agreater or less distance apart by suitable spacers to accommodate warpspools of greater length.

Disposed below the upper back-rack sections B are the lower andindependent back-rack sections 13 each formed of two brackets or arms (1d, Fig. 2, having suitable bearings (F for warp-spools J. To the lowerportion of the brackets or arm d d are connected the clamps d", Fig. 1,which engage the face-plate b,

and afford transverse adjustment of the lower portions of theseback-rack sections, substantially as in my prior patent.

The upper portions of the brackets or arm d (1, Figs. 1 and 2, areseated upon the underside of the intermediate back-rack supports or rods0, d, and are connected together by ties or spacers d being adjustablyclamped to the said supports or rods by means of a plate a" and bolt d,substantially as are the brackets or arms I) b, the construction beingsuch that by manipulation of the clamps d and bolts d the lowerback-rack sections may be adjusted independently of the upper back-racksections or, if desired, the brackets or arms (1 d may be spaced apartby the use of appropriate tie pieces or spacers d to suit the use ofdifferent lengths of warpspools.

By the independently adjustable character of the upper and lowerbackrack sections, as described, it will be obvious to one skilled inthe art that an economic use can be made of the entire width of the loomand the loom adapted to greater variations in width of fabrics to beproduced than heretofore, it being understood that such' adjustment doesnot necessitate substitution of any of the parts by others of differentform or character.

As already explained, the brackets O, constituting the upper portion ofthe upper back-rack sections, have suitable bearings for the whip orguide rolls 0 c, which guide the warp rt coming from the wai-pspools bI) and adjustably secured to each of the brackets C is a guide rollsupporting arm F having bearings f f for the guide rolls f f for thewarp threads y coming from the warpspools d d of the lower back-racksections, Figs. 1, 4

.and 5.

Each of the brackets G has a bearing flange f 2 upon which rests thefoot f 3 of arm F, a bolt and nut, f f serving to secure the parts inadjusted relation, Figs. 4 and 5. From this general construction, itwill be noted that as the upper or lower back-rack sections are adjustedtransversely as already described, the whip or guide rolls may bereadily adjusted to the changed condition.

In order to enable the take-up rolls G at the front of the loom to beadjusted to suit the fabrics resulting from the described adjustment atthe rear, said rolls G are mounted on the take-up shaft G so as to bemovable transversely thereof, said shaft being driven as usual. Securedto the beam A is the transversely extending plate 1 carrying theadjustable brackets g for support of the upper press rolls (1 thebrackets being secured in adjusted position by set screws 1 Figs. 1 and3, or other suitable means. The lower press rolls 9 are mounted onspring-actuated spring arms b and are adjustable on the shaft or rod 9',all as will be readily understood by one skilled in the art.

While the illustrated form of the invention discloses only a seriesoffour vertically arranged warp-spools and the particulars of structuredescribed disclose one form or embodiment of the invention, it is to beunderstood that the invention is not circumscribed by these details, aschanges may be made therein, a greater or less number of warp-spools beemployed and variations made Within the scope of the present invention.

Having thus described the nature of my invention, what I claim anddesire tosecure by Letters Patent is:

1. In a loom, a back-rack for supporting warp-spools comprisingindependent upper and lower portions, and means for independentlyadjusting said portions relatively to each other transversely of theloom.

2. In a loom, the combination of a back-rack comprising a series ofupper and lower portions independent of each other, means for separatelyadjusting said upper and lower portions transversely of the loom, andindependent guide roll supports for said upper and lower portions of theback-rack.

In a loom, the combination of a bacl i'acl for supporting Warp-spoolscomprising a series of upper and lower portions independent of eachother, means for separately adjusting said upper and lower portions ofthe baclerack bodily transversely of the loom, and guide rollsindependently adjustable in conformity with the adjustment of theirportion of the back-rack.

-l. In a loom, a back-rack for supporting a series of warp-spoolscomprising a series of back-rack sections each formed of an upper and anindependent lower portion alternately disposed and means for permittingseparate adjustment of the upper and lower portions transversely of theloom to enable the warp-spools to overlap as desired.

5. In a loom, a baclerack for supporting a series of warp-spoolscomprising, a series of back-rack sections each formed of an upper andan independent lower portion alternately disposed, means for permittingseparate adjustment of the upper and lower portions transversely of theloom to enable the warpspools to overlap as desired, guide rollsupports, and means for separately adjusting them to guide the warpcoming from the warp spools.

G. In a loom, the combination of back-rack sections formed ofindependently adjustable upper and lower portions. means for adjustablysupporting the upper part of the upper portion, means for adjustablysupporting the lower part of the lower portion, and an intermediatebackraek support common to both the upper and lower portions.

7. In a loom, back-rack section supports comprising an upper, a lower,and an intermediate support, and backrack sections formed ofindependently and transversely adjustable upper and lower portionsmounted on said supports.

3. In a loom, back-rack section supports comprising an upper, a lower,and an intermediate support, backa-ack sections formed of independentlyand transversely adjustable upper and lower portions mounted on said supports, and independently adjustable guide supports for the warp comingfrom the upper and lower back-rack portions.

9. In a loom, a back-rack formed of a series of backrack sections, eachformed of upper and lower pairs of brackets or arms for supportingwarp-spools, intermediate back-rack supports, and means for separatelyadjusting the pairs of upper and lower brackets or arms along saidintermediate support.

10. In a loom, a back-rack formed of a series of backrack sections, eachformed of upper and lower pairs of brackets or arms for supportingwarp-spools, intermediate back-rack supports, means for separatelyadjusting the pairs of upper and lower brackets or arms alongsaidintermediate support. and guide roll supports carried by the upperbrackets or arms and means for adjusting said roll supports transverselyof the 100m.

11. In a loom, the combination of a backa'ack for supporting warpspoolscomprising independent upper and lower portions, means for independentlyadjusting said portions relatively to each other transversely of theloom, take-up rolls transversely adjustable, and press rolls actingthereon and transversely adjustable.

12. In a loom, two pairs of independent brackets or arms constituting; aback-rack, a spacer or tie bar joining the members of each pair, aback-rack support common to both of said pairs of brackets, and meansfor separately adjusting and clamping the two pairs of brackets or armsto said intermediate back-rack support.

In testimony whereof I aflix my signature in presence of two witnesses.

OTTO W. SCHAUM.

Witnesses E. C. RTIOADS, .TonN 'lmnn.

